Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
  • H04L41/08—Configuration management of networks or network elements
  • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities

Definitions

• the present invention relates to a telecommunication network which is divided into a number of parts.
• the different parts can comprise different kinds of transmission media, for instance radio link connection, coax-connection, fiber optic connection etc.
• ring networks will be established, at which different network structures will be interconnected.
• the transmission capacity in the different parts of the network varies.
• the capacity in the telecommunication networks of today is statically allotted. This implies that channels in the network are arranged according to an anticipated need. The implication of this is that the channel use is arranged independent of the need existing in each moment. Furthermore the channels are allotted determined traffic directions. The consequence of this is that a connection can have free channel space which is not possible to use because the traffic direction of the channels do not correspond to the wanted traffic direction.
• the information is furthermore transmitted in a spiderweb-similar network.
• the present invention intends to solve the above mentioned problems.
• the present invention relates to a device for control of the capacity in a telecommunication network.
• the telecommunication network which preferably is a ring network, comprises a number of parts.
• the parts which can consist of different media, for instance coax, fiber, radio link etc., has each a transmission capcity which is depending on the media.
• the transmission capcity in the different parts of the nework are known.
• Centrally in the network is arranged a control function which in each moment decides the capacity need in the different parts of the network.
• the control function is arranged to flexibly allocate the parts of the network that transmission capacity which is required at the moment.
• the control function is further arranged to communicate with channel creating devices in the telecommunication network and the channel creating devices are controlled by the control function.
• the channel creating devices are arranged to establish channels for communication in different parts of the network.
• the creation of channels by the channel creating devices and traffic allocations in the channels are controlled by the control function.
• the channel creating devices are further arranged to control frequency separation mechanisms in the different parts of the telecommunication network.
• the channel creating devices are preferably linked in the borders between different parts of the telecommunication network.
• the telecommunication network is further arranged in the form of a ring network.
• the invention allows that the capacity of the network can be used in an efficient and optimal way. Further the invention allows that the transmission direction is selectable depending on the existing need. The invention further allows that the capacity in the different parts of the network is variable. Possibility is further given to allocate channels, frequencies, depending on the existing need. Furthermore the channels can be reallocated between different parts of the network without these influencing each other.
• the channel allocation and traffic direction is consequently possible to implement in the different parts of the network, independent of each other.
• the ring network structure further gives a flexible use of the network by the possibility to reroute the traffic at network fault.
• the elimination risk, which in conventional networks strikes many subscribers in the network, is drastically reduced.
• Figure 1 shows a ring network where A, B, C, D and E shows different parts of the network.
• Figure 2 shows in a corresponding way a network divided into parts with centrally arranged control device.
• Figure 3 shows a part of the network with channel creating devices arranged in the border between the different parts of the network.
• Figure 4 shows corresponding to Figure 3 with freqency separation mechanisms indicated.
• a telecommunication network according to Figure 1 is arranged.
• the invention relates to a device at telecommunication network for control of the different parts of the telecommunication network.
• the different parts consist for instance of coax connections, fiber connections, radio link connections etc.
• Channel creating device is arranged in the border between each part of the network.
• a centrally arranged control device is arranged to communicate with the channel creating devices.
• the control device gathers its information from the different parts of the telecommunication network regarding the information transmission need.
• a decision, by the control device is after that made regarding which channels that shall be used and their allocation in the network.
• the channel creating devices receive the information and communicate with the frequency separation mechanism in the telecommunication network.
• the traffic direction in the network is further controlled.
• the telecommunication network is divided into a number of parts A, B, C etc.
• Each part of the telecommunication network has individual properties. Accordingly part A can correspond to a coaxial connection, part B to a fiber optical connection an C to a radio link connection etc.
• the transmission capacity is limited by the properties of respective media.
• the properties which at that are to be observed are respective cable's frequency limitations and at that possiblity to divide into a number of different channels.
• part C where a radio link tansmission is established, the transmission capacity is limited by the available frequency space in the ether. Further the frequency space is limited by the risk for disturbances from adjacent radio transmissions.
• the available frequency space in the ether can vary during the different parts of the 24, hours depending on the grade of use of other radio transmissions within the range where the radio link transmission can be disturbed, or disturb.
• channel creating devices are arranged. These channel creating devices are allowed to communicate on one hand with the own network, on the other with users in the network or with other networks. The changeover to other networks or users in the network can also be connected to the network parts in other points than here indicated.
• Figure 3 where the channel creating devices have been indicated in part of the network has also been indicated the possibility to connect other networks or user to the channel creating devices.
• a central control device, S has been indicated. The control device communicate with the different parts of the network and gathers information regarding information transmission need. Further the border between the area A and area B in Figure 2 is considered. In this interface, channel creating devices and frequency separation mechanisms according to Figure 4 are arranged.
• the information comprises among other things capacity need and destination for the information in question. Further is transferred information about limitations in the network such as the free capacity space of the different parts and/or faults in the network.
• the information is transferred via the lined connections in Figure 2 to the control device.
• the control device after that determines what channel space that is needed for the information that is to be transmitted on the network. Further the control device examines which possible routes that exist with regard to the wished information space. The control device after that decides which path an information is to be routed in the network.
• control device decides which frequencies, channels, that are to be allocated the information transmission in question in the different parts of the network, information regarding the decided frequency allocations are transferred to the mentioned channel allocation devices in Figure 3. Information is further transferred whether respective channel shall be one-way or bi-directional, and in the cases when they are one-way what direction they shall have in the network. The allocation of channels is in this way flexibly made in the different parts of the network at which one for each occasion adapted need is fulfilled.
• the channel creating devices, K are further arranged to control frequency separation mechanisms, F, in the network.
• the frequency separation mechanisms have the task of sorting out the different channels which come in respective go out in respective interface in the network.
• the channel creating devices and the frequency separation mechanisms in other respects operate according to in itself well known methods. In the description it has been supposed that the channel creating devices are arranged between parts of the network which in their characters are different. Any prevention that the channel creating devices are arranged within a part network where one and the same network structure exists on both sides of the channel creating devices does not exist.
• the control device further receives information from the different parts of the network regarding limitation that can occur, for instance break on a connection.
• a connection for instance in part B, traffic which comes in in the border between part A and B to be routed over part distance A E D C to users or networks which are connected in the border between area B and C.
• information which are to be routed from the border area between area B and C to the area between A and B will be routed over the part areas C D E A B.
• the control device will at that see that available channels are used in an efficient way and that as much communication as possible can be performed without serious disturbances in the network.
• the control device further communicates continuously with the different parts of the network and analyses the traffic need in relation to available resources. Reallocation of channels are at that made depending on the need. Further an already established connection can be routed another path for making capacity, channels, in the network, available. On such occasions the control device receives information from the different parts of the network. Analysis in the control device decides possible reallocations of the network when a reallocation of channels and/or change of traffic direction or route is needed, the control device transmits orders to the channel creating devices, which perform necessary changes inclusive control orders to the frequency separation mechanisms. In the case that the network is not capable of establishing all connections which are wanted on one occasion, the control device is arranged to otimize available channels for best possible use. The control device at that takes into consideration the communication transmission which has priority before others.

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• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Mobile Radio Communication Systems (AREA)
• Small-Scale Networks (AREA)

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• 1994
  • 1994-10-04 SE SE9403343A patent/SE515058C2/sv not_active IP Right Cessation
• 1995
  • 1995-09-21 EP EP95934367A patent/EP0784890B1/de not_active Expired - Lifetime
  • 1995-09-21 DK DK95934367T patent/DK0784890T3/da active
  • 1995-09-21 WO PCT/SE1995/001075 patent/WO1996010876A1/en active IP Right Grant
  • 1995-09-21 DE DE69524779T patent/DE69524779T2/de not_active Expired - Lifetime

Non-Patent Citations (1)

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